I didn't need to use Amos right away, so I've installed SPSS only for the past two months. Now I try to install AMOS too, but the authorization code that I received does not work.

I have received only one authorization code for the purchase of these two program, and expected it to work to install both. I have also exchange a lot of emails with a representative of Studentdiscount.com but the person does not understand this issue. I tried the new license codes that I received after sending an email to spssls@us.ibm.com, but that code didn't work either. Please help me to solve this issue.